# BLACK HILLS CORP /SD/ (BKH) — merger/definitive [pending]
Source: SEC API (secapi.ai) · situation sit_b1df31fea43afc39da2b · retrieved 2026-08-11T15:52:44.613Z

## Overview
Black Hills Corporation is an electric utility company providing electric services in the western United States.

Black Hills Corporation agreed to acquire NorthWestern Energy Group, Inc. pursuant to an Agreement and Plan of Merger dated August 18, 2025, with River Merger Sub Inc. as the merger subsidiary. Black Hills shareholders will vote on April 2, 2026 to approve the issuance of Black Hills common stock ($1.00 par value) to NorthWestern Energy stockholders in connection with the proposed transaction. The record date for voting is January 28, 2026. Black Hills is also seeking shareholder approval to increase authorized shares from 100 million to 300 million, change the company name, and increase authorized indebtedness from $8 billion to $20 billion.

## Terms
- Counterparty: NorthWestern Energy Group, Inc. · Consideration: stock

## Key dates
- Announced 2026-01-30 · Record 2026-01-28 · Vote 2026-04-02

## Timeline
- 2026-01-30 · 425 (0001104659-26-008728): 425 - BLACK HILLS CORP /SD/ — *Black Hills Corporation is an electric utility company providing electric services in the western United States.* Black Hills Corporation agreed to acquire NorthWestern Energy Group, Inc. pursuant to an Agreement and Plan of Merger dated August 18, 2025, with River Merger Sub Inc. as the merger subsidiary. Black Hills shareholders will vote on April 2, 2026 to approve the issuance of Black Hills common stock ($1.00 par value) to NorthWestern Energy stockholders in connection with the proposed transaction. The record date for voting is January 28, 2026. Black Hills is also seeking shareholder approval to increase authorized shares from 100 million to 300 million, change the company name, and increase authorized indebtedness from $8 billion to $20 billion.
  https://www.sec.gov/Archives/edgar/data/1130464/0001104659-26-008728.txt

## Citations
- 0001104659-26-008728 — https://www.sec.gov/cgi-bin/browse-edgar?action=getcompany&type=&dateb=&owner=include&count=40&search_text=000110465926008728